Nicheloom

Market intelligence for builders — see what's gaining traction before it's crowded.

Sources

AI email agents and deliverability

Recent window: last 5.1 months (2026-04-24 → 2026-09-27), compared with the prior 5.1 months.

horizontal · 134 members · Data as of 2026-09-30

These products automate inbox triage, message drafting, outreach campaigns, and sender reputation warmup. They are used by sales reps, growth marketers, and developers building autonomous workflows to boost productivity and inbox placement rates. Unlike traditional email clients or generic CRMs, this cluster specifically centers on AI-driven autonomous drafting and deliverability infrastructure designed for human teams and AI agents alike.

Metrics

Stage
forming
Recent count
108
Prior count
12
Total count
134
Momentum
300.00
Attention
0.49
Crowding
0.56
Concentration
0.82
Opportunity
0.53

Opportunity components

Attention
0.49
Low crowding
0.44
Momentum (normalized)
1.00
Low concentration
0.18

Monthly trajectory

Source split

github
7 (0.06)
hn
8 (0.07)
ph
90 (0.83)
yc
3 (0.03)

Dominant source: ph · Divergence: 0.81

Similar themes

Members

Name Source Upvotes ▼ Launched
Upstream PH 976 2026-06-18
Brew PH 905 2026-05-26
Mailwarm 2.0 PH 680 2026-06-04
mailX by mailwarm PH 597 2026-05-20
Slashy PH 477 2026-06-14
Migma AI PH 452 2026-07-22
MailAdept by mailwarm PH 287 2026-07-01
NudgeForMe PH 284 2026-08-01
AgentMail PH 274 2026-04-09
Quartz PH 270 2026-06-17
Atomic Mail Agentic PH 268 2026-06-21
Letterbook PH 254 2026-03-30
Hello Inbox PH 244 2026-09-14
Supafax PH 229 2026-06-30
Slashy Assistant PH 229 2026-09-14
Deliveryman.ai PH 186 2026-06-04
Resend Automations PH 173 2026-05-14
AutoSend MCP PH 171 2026-03-18
Nitrosend PH 168 2026-07-16
Cloudflare Email Service PH 167 2026-04-17
AI Emaily PH 165 2026-07-07
Agent.email HN 99 2026-05-21
Mailyte PH 75 2026-09-15
jevmail GITHUB 72 2026-09-19
LaterOn v2: The agentic email plaftform PH 61 2026-09-25
Lastbox PH 55 2026-09-18
E2a HN 48 2026-05-11
Make senders work to get into your inbox HN 44 2026-07-15
mailX by mailwarm - Instant deliverability diagnostics for AI agents & humans. YC 35 2026-05-18
Slashy - start saving 2 hours a day on email YC 33 2026-08-03
🦋 Pollinate – Agents that automate data entry into your ERP built in days not quarters. YC 30 2026-02-05
mailysend GITHUB 27 2026-09-09
dearagent GITHUB 25 2026-09-11
Avec HN 22 2026-04-15
Inbox-pilot GITHUB 20 2026-09-29
Sequenzy: AI-Native Email Marketing Tool PH 16 2026-09-14
jev-gmail-ai-spam-filter-and-labeling GITHUB 16 2026-09-19
Housecat.com HN 15 2026-07-22
Easy-ai-ebook-writer-kdp-generator GITHUB 11 2026-09-09
Sender GITHUB 11 2026-09-18
Upstream - The first inbox designed for humans and agents YC 11 2026-06-22
MailCat HN 9 2026-02-21
Letterbook - AI Customer Support Built for Startups YC 9 2026-04-15
Robin PH 9 2026-09-27
OH HAI PH 9 2026-09-24
LeadSnipper PH 8 2026-09-14
Macro HN 8 2026-06-15
Stop screenshotting competitor emails. AI does the analysis HN 8 2026-01-21
Email API benchmarks HN 8 2026-03-12
mailer-releases GITHUB 8 2026-09-26